G - Physics – 01 – S
Patent
G - Physics
01
S
343/27
G01S 7/28 (2006.01) G01S 13/10 (2006.01) G01S 13/42 (2006.01) G01S 13/87 (2006.01)
Patent
CA 1216049
Abstract A pulse radar apparatus is provided with a transmitter (2), a transmitting antenna (1) and a receiving antenna system (3) with a first and a second receiving channel (4 and 5) coupled thereto. The receiving antenna system (3) comprises N stacked receiving antennas (AO, A1, ..., AN 1). The first receiving channel (4) comprises N receiving circuits (BO, B1, ..., BN-1), each connected to a corresponding receiving antenna (AO, A1, .... AN-1) and each processing the particular echo signal into two orthogonally phase-detected and digitised video signal components, and a beamformer (14) to derive from said components the orthogonal components Ik, Qk of the video signal determined jointly by the receiving circuits in accordance with a receiving beam pattern k corresponding with a specific elevation interval. The second receiving channel (5) comprises:N receivers (BO, B1,..., BN-1), each connected to a corresponding receiving antenna (AO, A1, ..., AN 1); a beamformer (17) to derive from the signals of the N receivers (BO, B1,...,BN-1) an echo signal determined in accordance with a given receiving beam pattern; and a signal processing circuit (18) for processing said echo signal into two orthogonally phase-detected and digitised video signal components I, Q. The apparatus further comprises a video processor (16) for processing the applied Ik, Qk and I, Q signals.
452967
Gellekink Bernard
Teulings Wilhelmus A.
Fetherstonhaugh & Co.
Thales Nederland B.v.
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